Table 2.
Univariate and Multivariate Logistic Regression Analysis for Predictors of In‐hospital Mortality
| Variables | Unadjusted OR | P Value | Adjusted OR | P Value |
|---|---|---|---|---|
| Serum calcium | ||||
| Q1 | Ref | — | Ref | — |
| Q2 | 0.330 | 0.001 | 0.443 | 0.037 |
| Q3 | 0.200 | <0.001 | 0.243 | 0.005 |
| Q4 | 0.190 | <0.001 | 0.210 | 0.001 |
| Calcium measuring time from admission | 0.943 | 0.010 | 0.953 | 0.059 |
| Calcium measuring time of day | ||||
| 6 am to 11 pm | Ref | — | ||
| 12 pm to 5 pm | 1.092 | 0.823 | ||
| 6 pm to 11 pm | 1.370 | 0.355 | ||
| 00 am to 5 am | 1.882 | 0.112 | ||
| GRACE risk score | 1.025 | <0.001 | 1.017 | 0.017 |
| Age | 1.043 | <0.001 | 1.010 | 0.701 |
| Male sex | 1.804 | 0.043 | 2.236 | 0.037 |
| Smoking history | 0.699 | 0.186 | ||
| HTN | 1.112 | 0.699 | ||
| DM | 2.155 | 0.005 | 1.585 | 0.158 |
| Previous PCI | 0.466 | 0.292 | ||
| Previous CABG | <0.001 | 0.998 | ||
| Previous ASA | 0.560 | 0.078 | 1.423 | 0.421 |
| Previous statin | 0.454 | 0.070 | 0.609 | 0.367 |
| Previous ACEI/ARB | 0.712 | 0.379 | ||
| Previous β‐Blocker | 0.377 | 0.025 | 0.459 | 0.138 |
| BMI | 0.955 | 0.332 | ||
| SBP | 0.982 | 0.006 | 0.996 | 0.688 |
| DBP | 0.977 | 0.031 | 0.996 | 0.806 |
| Heart rate | 1.044 | <0.001 | 1.020 | 0.023 |
| SCr | 1.017 | <0.001 | 1.010 | 0.013 |
| Albumin | 0.925 | 0.007 | 1.071 | 0.063 |
| TC | 1.009 | 0.947 | ||
| LDL‐C | 0.844 | 0.276 | ||
| HDL‐C | 0.749 | 0.526 | ||
| TG | 0.844 | 0.276 | ||
| WBC | 1.203 | <0.001 | 1.139 | <0.001 |
| Hgb | 0.982 | 0.007 | 0.998 | 0.816 |
| Platelet counts | 0.999 | 0.805 | ||
| Serum potassium | 1.485 | 0.140 | ||
| Serum sodium | 0.954 | 0.107 | ||
| Serum chloride | 0.971 | 0.010 | 0.979 | 0.162 |
| LM disease | 2.285 | 0.016 | 3.124 | 0.011 |
| 3‐vessel disease | 2.296 | 0.003 | 2.870 | 0.002 |
| PCI | 1.297 | 0.461 | ||
| STEMI | 2.297 | 0.003 | 1.480 | 0.447 |
| NSTEMI | 1.249 | 0.588 | ||
| UA | 0.449 | 0.003 | 1.640 | 0.335 |
| ASA | 0.001 | 0.997 | ||
| Clopidogrel | 0.001 | 0.997 | ||
| Statin | 0.001 | 0.996 | ||
| ACEI/ARB | 0.590 | 0.052 | 0.837 | 0.582 |
| β‐Blocker | 1.273 | 0.430 | ||
| Nitrated derivative | 1.180 | 0.542 |
Abbreviations: ACEI, angiotensin‐converting enzyme inhibitor; ARB, angiotensin receptor blocker; ASA, aspirin; BMI, body mass index; CABG, coronary artery bypass grafting; DBP, diastolic blood pressure; DM, diabetes mellitus; HDL‐C, high‐density lipoprotein cholesterol; Hgb, hemoglobin; HTN, hypertension; LDL‐C, low‐density lipoprotein cholesterol; LM, left main; NSTEMI, non–ST‐segment elevation myocardial infarction; OR, odds ratio; PCI, percutaneous coronary intervention; Q, quartile; Ref, reference; SBP, systolic blood pressure; SCr, serum creatinine; STEMI, ST‐segment elevation myocardial infarction; TC, total cholesterol; TG, triglycerides; WBC, white blood cells.